Mazzuco, Rosemarie; Hexsel, Dóris (2010). «Gummy smile and botulinum toxin: A new approach based on the gingival exposure area». Journal of the American Academy of Dermatology63 (6): 1042-1051. ISSN0190-9622. doi:10.1016/j.jaad.2010.02.053.
Polo, Mario (2008). «Botulinum toxin type A (Botox) for the neuromuscular correction of excessive gingival display on smiling (gummy smile)». American Journal of Orthodontics and Dentofacial Orthopedics133 (2): 195-203. ISSN0889-5406. doi:10.1016/j.ajodo.2007.04.033.
Kim, Tae-Woo; Kim, Hyewon; Lee, Shin-Jae (2006). «Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II Division 2 patient». American Journal of Orthodontics and Dentofacial Orthopedics130 (5): 676-685. ISSN0889-5406. doi:10.1016/j.ajodo.2005.07.013.
Mazzuco, Rosemarie; Hexsel, Dóris (2010). «Gummy smile and botulinum toxin: A new approach based on the gingival exposure area». Journal of the American Academy of Dermatology63 (6): 1042-1051. ISSN0190-9622. doi:10.1016/j.jaad.2010.02.053.
Polo, Mario (2008). «Botulinum toxin type A (Botox) for the neuromuscular correction of excessive gingival display on smiling (gummy smile)». American Journal of Orthodontics and Dentofacial Orthopedics133 (2): 195-203. ISSN0889-5406. doi:10.1016/j.ajodo.2007.04.033.
Kim, Tae-Woo; Kim, Hyewon; Lee, Shin-Jae (2006). «Correction of deep overbite and gummy smile by using a mini-implant with a segmented wire in a growing Class II Division 2 patient». American Journal of Orthodontics and Dentofacial Orthopedics130 (5): 676-685. ISSN0889-5406. doi:10.1016/j.ajodo.2005.07.013.